However, Chris insists it did not happen and nightclub bosses are also unaware of any incident.

In a tweet which has since been deleted, the star wrote: "Please stop with the false stories. I don’t usually comment but I didn’t do anything. Had a great show at Powerhouse and a positive one."

A representative for the musician told 3am: "Chris didn't do this. The club also says they are unaware of this happening. Everyone with Chris knows nothing about this.

(Image: WireImage)

"The girl has not come in person to the Anaheim police station and she would not go into details with the police regarding her injuries - she only told them that she was pushed.

"She said all of this over the phone. She also didn’t call the police at the time she's saying the alleged assault happened. We have the club reviewing tapes."

They added: "We are getting a statement from the club saying that Chris did not assault this person nor to he contribute to her falling as they witnessed everything."

The female , who is listed on a talent agency's website as a model and actress, claims she was pushed deliberately by Chris and she later went to hospital where she was told by doctors that she had torn ligaments in her right knee.

She gave a photo to TMZ which shows her standing using crutches with her leg in a brace.

(Image: Getty)

Deanna filed a report with local police who are now investigating the incident and while they have confirmed a statement has been taken, they did not say if it was in relation to Chris. No arrests have been made.

Chris was famously charged for assault in 2009 after beating up his then girlfriend Rihanna.

The pair are now on better terms and were recently rumoured to have reconciled but a reunion was never officially confirmed.